Momcozy Original Replacement Inserts 19mm — 4-Pack for M5/M6/M9

Authentic, versatile replacement inserts for Momcozy wearable pumps

When you rely on a breast pump, a dependable set of inserts matters. The Momcozy Original Replacement Inserts are built to work with M5, M6, and M9 wearable pumps, delivering broad compatibility with a consistent 19 mm size. Crafted from 100% food-grade silicone and BPA-free, these parts are designed for frequent use and long-lasting performance, making them a practical addition to a busy pumping routine. The four-pack format provides ready replacements so you can stay on schedule without scrambling for parts.

What you get in a 4-pack

• Four 19mm silicone inserts ready to pair with Momcozy wearable pumps
• Authentic parts designed for universal compatibility across M5, M6, and M9 models
• FSA/HSA eligible as an eligible medical expense in many plans
• Safe, durable material suitable for repeated use

Real-world benefits and use cases

With the right size, pumping sessions can feel steadier, with reduced rubbing and pressure during longer runs. The 19mm option offers a balance between coverage and airflow that can support comfortable sessions during late-night pumping or busy daytime schedules. While results vary, users often appreciate a smooth, consistent surface that holds up to frequent cleaning and occasional submersion for sanitization.

Care, cleaning, and maintenance

• After each use, wash with warm soapy water and rinse well
• For sterilization, submerge in hot water up to 100 C / 212 F for 5–10 minutes
• Air-dry completely before reuse

Fit, sizing, and tips

Size fidelity matters for comfort and pumping efficiency. If you notice nipple swelling, rubbing, or squeezing, you may need a different insert size. Regularly measuring and replacing inserts helps maintain optimal fit and comfort.